frequency selecting software

does anyone know of a software program that you can plug in freq’s and determine if there going to be a problem or not in a certain area i had 1 of my 900 ap’s set to 910 mhz and this company 911 hired said that 910mhz hit the 8 octave on there freq it was like 154.445 or close to that i am interested in some software that will do stuff like that does anyone know of this.